baber/WOPTO huggingface dataset:
Patent GB-1090825-A (GB)
Abstract: 1,090,825. Variable capacitor. OXLEY DEVELOPMENTS CO. Ltd. Dec. 1, 1965 [Dec. 15, 1964], No. 50933/64. Heading H1M. Brass cylinder 10 forming the fixed electrode of a variable capacitor is closed at one end by a plug 12 and is separated from brass piston 22 by a sleeve 20 of PTFE which is fixed only at the plug 12 so that it is free to undergo thermal expansion along its axis without altering the position of the fixed electrode 10. Brass piston 22 is threaded to engage rod 14 whereby its position relative to the fixed electrode may be adjusted. An extension 18 of rod 14 and a stirrup 16 allow mounting the capacitor on a printed circuit board. Alternatively, the outer electrode may have a threaded portion and a flange, whereby the capacitor may be fixed to e.g. a chassis wall by means of a nut (Figs. 3, 4, not shown). The electrodes may be of metals other than brass and may be of different metals if their coefficients of thermal expansions are the same. The capacitor illustrated in Fig. 5 has two concentric cylindrical dielectric sleeves 82, 86, an inner tubular electrode 88 electrically connected via pins 90 to outer electrode 80 and a tubular adjustable electrode 84 which slides between the dielectric sleeves.
Patent GB-1226504-A (GB)
IPC: B21B17/04
Filed: 1969-01-29
Abstract: 1,226,504. Rolling tubes. MANNESMANNROHREN-WERKE G.m.b.H. 29 Jan., 1969 [1 Feb., 1968], No. 4963/69. Heading B3M. In a process for rolling a tube from a pierced billet in a continuous mill, the speeds of the individual stands of the mill are modified as the leading end of the billet enters the stands and/or as the trailing end leaves the stands. As the leading end enters stand b 2  or a following stand, the speed of the other stand or stands in which the billet is present is reduced by a fraction of the speed by which a mandrel 2 in the billet increases. Alternatively, or additionally, the speeds of the stand or stands in which the billet is still present is reduced as the billet leaves the preceding stands. The difference in speed of any stand is calculated by multiplying the change in speed of the mandrel by a function of the coefficients of friction between the mandrel and billet, and between the billet and rolls.
Patent GB-1226924-A (GB)
IPC: G01T1/40
Filed: 1969-03-10
Abstract: 1,226,924. Measuring nuclear radiation. LABORATORUM PROFESSOR DR. RUDOLF BERTHOLD. March 10, 1969 [March 13, 1968], No.12418/69. Heading G1A. In a nuclear radiation measuring arrangement the HT applied to the detector or an amplifier following the detector is controlled for the purpose of automatic drift stabilization by a source having a beam energy which is at least equal to the maximum intensity expected to be measured and located in a definite position relative to the probe, and a circuit which counts the number of detector output pulses exceeding a predetermined threshold and effects control to maintain this figure constant. The source may be used for between test calibration or may be used during measurement, and the arrangement is said to be particularly useful for energy spectroscopy of nuclear radiation. An α radiator which produces less background noise than a y radiator is said to be preferable for the calibrating source and americium 241 is exemplified with an anti-coincidence circuit for eliminating γ pulses. The calibrating source may be concurrently used for measuring other physical quantities, e.g. thickness and moisture content.
Patent GB-1227713-A (GB)
IPC: C09K9/02
Filed: 1969-10-22
Abstract: 1,227,713. Spiro - [indolino - 2,3<SP>1</SP> - naphtho (2,1 - b) (1,4) oxazine] derivatives. FUJI PHOTO FILM CO. Ltd. 22 Oct., 1969 [28 Oct., 1968], No.51818/69. Heading C2C. [Also in Divisions C3 and C4] A photochromic compound is represented by the formula wherein X represents the radical -CN, -COOH, or -COOR (where R is an alkyl group with 1 to 5 carbon atoms), n is an integer 1 to 4; R 2  and R 3  each represent an alkyl group with 1 to 5 C atoms or a phenyl group; and R 1  represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen atom, a nitro group, a cyano group, an alkoxy group having 1 to 5 carbon atoms or a carboxyl group, which carboxyl group may be substituted with an alkyl group having 1 to 5 carbon atoms. The compounds may be obtained by refluxing in ethanol a quaternized indolenine derivative, ½-nitroso-#-naphthol and tri-ethylamine in an inert atmosphere, cooling and filtering. In examples 1 - # - carboxyethyl - 3,3 - dimethyl spiro [indolino - 2,3<SP>1 </SP>- naphtho (2,1 - b) (1,4)- oxazine], 1 - # - carboxyethyl - 3,3,5 - trimethyl spiro [indolino - 2,3<SP>1</SP>- naphtho (2,1 - b) (1,4)- oxazine], 1 - carboxyethyl - 3,3 - dimethyl - 5- methoxy spiro [indolino-2,3<SP>1</SP>-naphtho (2,1-b)- (1,4)oxazine], and l-Y-cyanopropyl-3,3-dimethyl - 5 - chloro spiro [indolino - 2,3<SP>1</SP>-naphtho (2, 1-b)(1,4)oxazine] are produced. Photographic, printing, curtains, glass and optical filter applications are instanced.
Patent GB-1229902-A (GB)
IPC: G03C11/14
Filed: 1969-02-18
Abstract: 1,229,902. Plastics laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 Feb., 1970 [18 Feb., 1969], No. 8713/69. Heading B5N. A laminate comprises a layer of saturated polyester bonded to a layer of cellulose ester by means of a copolymer comprising repeating units (I) -O(CH 2 ) 5 CO- and (II) -O(CH 2 ) 2 - OCOC 6 H 4 CO- in a molar ratio of 20 : 80 to 70 : 30, the carbonyl groups in 50-100% of the units (II) being para and the remainder meta, and the copolymer having a reduced viscosity in 0À5 g./dl o-chlorophenol at 25‹ C. of 0À3 to 2À0. The copolymer may be applied as a solution, dispersion, melt or solid, preferably as a film, heat and pressure being used to form the bond. The cellulose ester layer may be cellulose acetate, acetate butyrate, propionate, acetate phthalate, or nitrocellulose, and the polyester layer may be polyethylene terephthalate. Specific copolymers are mentioned.
Patent GB-1229992-A (GB)
IPC: C07C45/46
Filed: 1968-07-18
Abstract: 1,229,992. 1 - Phenyl - 2,2 - halogenoethanol derivatives. ROUSSEL UCLAF. 18 July, 1968 [18 July, 1967; 6 June, 1968], No. 34399/68. Heading C2C. [Also in Division A5E] The invention comprises compounds of the Formula I wherein X 1  and X 2  represent a hydrogen or halogen atom or a substituted or unsubstituted lower alkyl C 1-4  or lower alkoxy C 1-4  group and X 2  in addition represents a nitro group, X 3  and X 4  represent a hydrogen or halogen atom, Y represents a hydrogen atom, a lower alkyl C 1-4  or lower acyl C 1-4  group or the residue of a mineral acid, Z represents a hydrogen atom or a lower alkyl C 1-4  group and Hal represents a chlorine, bromine or iodine atom provided that when the groups Hal represent chlorine atoms, Y and Z each represent a hydrogen atom and one of X 1 -X 4  represents a hydrogen or chlorine atom, the remainder of X 1 -X 4  do not all represent hydrogen atoms. They are prepared by reduction of the corresponding ketone of Formula II to produce a compound of Formula I wherein Y = H and reacting this further with alkylating or acylating agents or mineral acids as desired. The reduction of a ketone III may be carried out using an aluminium alcoholate e.g. the isopropoxide and a secondary alcohol e.g. isopropanol or by reaction with a metal borohydride or hydrogen and/or a platinum catalyst. In an example 1 - acetoxy - 1 - (2<SP>1</SP>,5<SP>1</SP> - dichlorophenyl) - 2,2 - dichloroethane is prepared by reacting 1 - (2<SP>1</SP>,5<SP>1</SP> - dichlorophenyl) - 2,2- dichloroethanol with acetic anhydride; 1- ethoxy - (2<SP>1</SP>,5<SP>1</SP> - dichlorophenyl) - 2,2 - dichlorethane is prepared from the corresponding alcohol and triethyloxonium fluoroborate. The following compounds of Formula I are prepared by reduction of the corresponding ketone: 1- (2<SP>1</SP>,5<SP>1</SP>- or 2<SP>1</SP>,4<SP>1</SP>- or 3<SP>1</SP>,4-dichlorophenyl)-2,2- dichloroethanol, 1 - (2<SP>1 </SP>- methoxy - 5<SP>1</SP> - chlorophenyl)- or 1 - (2<SP>1</SP>,5<SP>1</SP> - dibromophenyl)- or 1- (41 - nitrophenyl)- or 1 - (2<SP>1 </SP>- chloro - 51 - nitrophenyl) - 2,2 - dichloroethanol, 1 - (2<SP>1</SP>- chlorophenyl) - 2,2 - dichloropropanol and 1 - (2<SP>1</SP>,5<SP>1</SP>- dichlorophenyl) - 2,2 - dibromoethanol. The ketones of Formula II may be prepared by direct halogenation of a ketone of Formula III or by the reaction of a compound of Formula IV with a halide of an acid of formula 2<SP>1</SP> - Chloro - 5<SP>1</SP> - methylacetophenone is prepared by reacting 4-chlorotoluene with acetyl chloride. The following ketones of Formula II are prepared: 2,2,2<SP>1</SP>,4<SP>1</SP>,5<SP>1</SP> - , 2,2,2<SP>1</SP>,3<SP>1</SP>,4<SP>1</SP> - pentachloroacetophenone, 2,2,21,41 - tetrachloroacetophenone, 2,2 - dichloro - 2<SP>1</SP>,5<SP>1</SP> - dibromoacetophenone, 2,2,2<SP>1</SP> - trichloropropiophenone, 2,2,21 - trichloro - 5<SP>1</SP> - nitroacetophenone, 2,2,2<SP>1</SP> - trichloro- 5<SP>1</SP> methylacetophenone and 2<SP>1</SP> - methoxy- 2,2,5<SP>1</SP> - trichloroacetophenone. The compounds of Formula I have insecticidal and/or herbicidal activity.
Patent GB-1231375-A (GB)
IPC: A01C7/18
Filed: 1969-09-08
Abstract: 1,231,375. Seed sowing implement. NODET - GOUGIS. 8 Sept., 1969 [23 Sept., 1968], No. 44216/69. Heading A1D. A seed sowing implement comprises a frame, a seed hopper, seed supply lines 20, drill opening blades 18 each associated with a supply line and each carried by a bar 17 which at one end is supported on a roller 19, links 13 to which the other end of the bar is pivotally attached, arms 11 pivoting on said links about a first shaft 12, the arms supporting a second shaft 8 and ground clearing rotors 1, one to each blade 18, mounted on a second shaft 8. The rotors 1 are mounted on the square crosssectioned shaft 8 between tubular spacers and their relative positions on the shaft are adjustable. The height of the axis of the ground clearing rotors is adjustable independently of the heights of the blades 18 and roller 19. The power take off shaft of a tractor is attached at 5 and drives the rotors through gearing 4. The position of the blades 18 and roller 19 on the bar 17 are adjustable. (For Figure see next page.)
Patent GB-1232598-A (GB)
IPC: B64C25/68
Filed: 1967-11-13
Abstract: 1,232,598. Aircraft arresting devices. DOWTY ROTOL Ltd. 6 Nov., 1968 [13 Nov., 1967], No. 51583/67. Heading B7G. [Also in Division F2] An aircraft arrester hook 11, Fig. 1, fast with an arm 16 and pivoted at 13 to the aircraft is raised and lowered by a telescopic unit 14 which acts both as jack and damper. The unit 14, Fig. 2, comprises a first cylinder 18 connected by an annular step portion 19 to a second cylinder wall 21, in which is movable a piston member 29 carrying a piston 32 which defines within cylinder 18 a chamber 34 into which liquid from a high pressure source 37 may be pumped to contract the unit, a second cylinder 22 concentrically inside the first cylinder 18 and defining therewith an annular chamber 26 and a pneumatic chamber 25 interconnected by ports 24. Annular chamber 25 is sealingly divided from a second annular chamber 45 by a flange 46 and chambers 25 and 26 may have gas pumped into a valve 27 so that a piston 44 floating inside cylinder 22 acts to compress the liquid in a pressure chamber 43 inside the cylinder. A counter-piston 33 forms part of the piston member 29 and has non-return valves 52 associated with its orifices 51 to admit liquid from the pressure chamber to a recoil chamber 54. When the unit is used as a shock-absorber in landing, the piston 32 expels liquid from a chamber 41 through a small orifice 40 in a diaphragm 28 into an annular chamber 45 and from there into pressure chamber 43. An additional flow path from the chamber 41 is provided by a pressure relief valve 42 and a drilled passage 57 in the piston 29. As the counterpiston 33 moves up the cylinder it closes orifices 48 above it and opens orifices 53 below it so that liquid flows in through orifices 53 to a recoil chamber 54 as well as through the non-return valve 51, 52. An apertured flange 30 slides in the first cylinder to provide bearing support for the piston member. If the unit is to be operated as a jack, chamber 34 is connected through a restrictor 35 to an electrically operated control valve 36 energized by a solenoid which connects the chamber 34 to either a high pressure supply line 37 or a return line 38 thus raising or lowering the piston 29. The rate of flow from the pressure line 37 causes piston movement which is not substantially resisted by the orifice 40.  The relief valve 42 comprises a plunger 56 mounted in the piston-rod 31 and exposed to fluid pressure in the second chamber 41 by way of a drilled passage 57 in the piston-rod. The other end of the plunger 56 abuts a piston valve 58 of larger diameter which slides in the pistonrod 31 and is loaded by a spring 59. Ports 61, 62 allow fluid flow from the chamber 41 when the fluid pressure on the plunger overcomes the load of spring 59.
Patent GB-1232942-A (GB)
IPC: A21B3/18
Filed: 1969-01-28
Abstract: 1,232,942. Suction handling of bakery products. B. SCHMIDT, A. S. SCHMIDT JR., H. E. MAURER, N. S. MURPHY, B. S. HERRICK and F. M. IRVING JR. [trading as ALTO CO.]. 28 Jan., 1969, No. 4548/69. Heading A2A. [Also in Divisions B8 and F1] In silenced suction handling apparatus for removing bakery products from pans on a conveyer 53, of the kind comprising suction heads 16 carried by an endless band 20 which traverses an arcuate path on the underside of a suction chamber, the suction chamber is connected by trunking 31 to an expansion type solids separator 23 which leads to the inlet of a fan 26, there being provided on the outlet side of the fan a silencer 29 comprising a housing 50 which provides a flow path bounded by a lining 51 of non-metallic sound reducing material. The silencer housing is preferably of sheet metal and is of larger cross-section than that of a trunking 28 connecting it to the fan outlet, an inner frame 52, 53, 54 of skeleton form being adapted to fit over the end of the trunking 28, separated from the housing by pieces 70 of foamed plastic, and a cover plate 57 being provided at the outlet end of the silencer, the cover plate having an opening fitted with wire mesh 58 to prevent ingress of dirt.
Patent GB-1238051-A (GB)
IPC: B23B3/28
Filed: 1968-06-17
Abstract: 1,238,051. Copy turning. J. L. JEANNERET. 17 June, 1968 [20 June, 1967], No. 28645/68. Heading B3T. A copying lathe has a main copying assembly comprising a carriage 2a movable parallel to the workpiece, a tool slide 2b movable thereon transverse to the workpiece axis and feeler means 101, 102 co-operating with a first template 100 to control the longitudinal and transverse movements of the main copying assembly, and an auxiliary copying assembly located above the workpiece and including a swivellable tool slide 13 mounted on a longitudinally movable carriage 12 movements of the slide 13 being controlled by a feeler 16 of, e.g., an hydraulic copying device, the feeler being arranged to follow either the contour of a template 25 fixed to the machine frame or, in an alternative embodiment, Fig. 6, the outline of a rotating cam 35. In this embodiment the cam is mounted with its axis in the path of movement of the feeler on a bracket 37 attached to the carriage 12 and is driven through gearing from a motor 38 under control of suitable cycle control switches. Drive to the feed screw 9 for the carriage 12 may be taken from that for the carriage 2a the drive train including an electromagnetic clutch 23 and possibly a reversing gear whereby the carriages may be fed simultaneously in the same or opposite directions and carriage 12 may be arrested at a given point to carry out machining operations without accompanying longitudinal movement. Operation of the clutch 23 may be made dependent upon switches operated by movement of the carriage 2a. Radial infeed of the slide 13 to bring the feeler 16 into contact with the cam 35 may be effected by electromagnet 45.
Patent GB-1239012-A (GB)
IPC: A43B9/10
Filed: 1967-08-31
Abstract: 1,239,012. Boots &c. NORVIC SHOE CO. Ltd. 30 Aug., 1968 [31 Aug., 1967], No. 39808/67. Heading A3B. A method of making a shoe of the veldtschoen type having pre-shaped toe and heel portions and having an out-turned flange extending therearound includes the steps of coating the flange and the top margin of the insole I with adhesive, placing the forepart flange on the insole I and clamping them together, supporting the rear end of the insole, lifting the rear part of the upper U to enable a last L to be inserted above the insole and into the forepart as shown, exerting forward pressure on the last to force it firmly into the forepart, pulling the back part of the upper down over the last, removing the pressure on the last and forcing the rear part flange down on to the insole I. The shoe is then finished in the usual manner. Apparatus for performing this method consists of a fixed plate 11 having a recess shaped to the forepart of the upper and a movable support 10 which clamps the flange and insole together. The insole I is supported at the rear by a plate 12 and pressure is applied to the last L by a block 13 which has a shape corresponding to the back of the last L and has a resilient lining to prevent damage to the last.
Patent GB-1257149-A (GB)
IPC: B23F21/02
Filed: 1970-08-19
Abstract: 1,257,149. Moulding toothed wheels. MICHIGAN TOOL CO. 19 Aug., 1970 [10 Nov., 1969], No. 39899/70. Heading B5A. [Also in Divisions B3 and C3] An abrasive gear-shaped finishing tool 6 comprises a body 34 having a plurality of tooth elements 8 for meshing engagement with a workpiece 10, each element including a working face consisting of a bonded matrix, at least a portion of the elements being of a composite construction wherein the working face thereof is divided into a plurality of sections 14, 16 each having a different abrasive finishing characteristic in order to impart selected variations in the abrasive finishing section on the workpiece. In use, the finishing tool is in tight meshing engagement with the workpiece and is rotated in crossed axis relationship therewith. The tool is manufactured in a mould consisting of a base-plate 26 and a master internal gear 28. A hub 12, which may be of metal or synthetic material, is secured to a centre stud 30 and has a plastic rim section 34. The space between the rim section and master gear is filled with a liquid mixture of a resin bonding agent, filler and/or abrasive particles, the abrasive being selected according to the degree of abrading required to be effected by the dedendum portions of the teeth. After curing, the addendum portions of the teeth are removed by machining, for example on a lathe, to a circle 22 (shown dotted, Fig. 2) which is slightly eccentric to the pitch circle 20. The tool is then replaced in the mould and the addendum portions of the teeth formed by an abrasive mixture, the abrasive being according to the degree of abrading required by the addendum portions of the teeth. A mechanical interlock 24 may be provided between the addendum and dedendum portions.
Patent GB-1257626-A (GB)
IPC: H04Q11/04
Filed: 1967-12-11
Abstract: 1,257,626. Automatic exchange systems. POST OFFICE. 11 Dec., 1968 [11 Dec., 1967], No. 56106/70. Divided out of 1,257,623. Heading H4K. The number of faults detected in each register of a group of registers is counted whether the faults are attributable to register malfunction or to external causes, the detection of a fault in one register causing the cancellation of fault counts in all other registers but the lone fault count up to a set number causing a register to be withdrawn from service. The invention is based on the view that, if faults are due to external causes the detection of such faults will be distributed over the registers, whereas faults due to register malfunction will occur in only one register at a time. When a fault count nears the set value an alarm is activated. Fault counting is inhibited during fault routining. The system is employed in a time-divisionmultiplex switching system that uses pulsecode-modulation.
Patent GB-1288514-A (GB)
IPC: B01D46/04
Filed: 1970-09-21
Abstract: 1288514 Gas filter HEINRICH LUHR VDI STAUBTECHNIK 21 Sept 1970 [20 Sept 1969 11 April 1970 14 April 1970] 44923/70 Heading BIT A gas filtering apparatus comprises a housing 1 having therein a plurality of aligned dirty-gas compartments 2 separated by walls 3 (Fig. 2 not shown), each dirty gas compartment having an associated clean-gas compartment 8 separated therefrom by a wall 9 having vertical slits 10 therein. The clean-gas compartments are connected by openings 15 to a common clean gas duct 16. The clean-gas and dirty gas compartments are separated by filter bags 12 arranged over frames 13 and fitted around the periphery of the slits 10. The bags may be mechanically shaken by shaker 23. Dirty gas enters each compartment 2 from 6 via closable flap 7. Separated dust falls to the hopper 4 and is removed via screw conveyor 5. The openings 15 in each clean-gas compartment may be closed for cleaning of the appropriate filter bags by a movable closure plate 17 which is attached to a hollow support tube 18 which passes through and out of the top of the clean gas duct through a slot extending longitudinally above the clean-gas compartments. The tube 18 is connected to a source 26 of reverse flow cleaning gas. The support tube and closure plate are moved back and forward above the clean gas compartments on trolley 20. Three methods are described of sealing the closure plate 17 against the opening 15. In the embodiment of Fig. 1, the bottom portion 24 of the tube is resilient and the closure plate is forced downwards by springs 25. In Fig. 3 (not shown), the closure plate (32) is downwardly flanged and spaced above the opening 15. An inflatable annular air cushion (33) fills the space between the closure plate and the periphery of the opening, this air cushion being inflated to form the seal. In Figs. 4 and 5 (not shown), a flat closure plate (38) which is spaced above the opening 15 has electromagnets (40) arranged around its periphery and the periphery of the opening 15 has energising armatures (41) arranged therearound, so that as the closure plate passes over the opening the electromagnets and hence its edges are attracted downwards to the periphery of the opening to form the seal.
Patent GB-1289283-A (GB)
IPC: A01P13/00
Filed: 1970-03-04
Abstract: 1289283 N,N-disubstituted alanine derivatives SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 22 Dec 1970 [4 March 1970] 10375/70 Addition to 1164160 Heading C2C N,N-disubstituted alanine derivatives of the general formula in which X is a hydrogen or chlorine atom and Y is a carboxyl group or salts and alkyl esters thereof. Compounds claimed per se are N- benzoyl - N - (4 - fluorophenyl) alanine ethyl ester; N - benzoyl -  N - (3 - chloro - 4 - fluorophenyl) alanine ethyl ester. Compounds in which Y is a carbalkoxy group are prepared by reacting a mono-N-substituted alanine derivative of the formula with a benzoyl halide, e.g. chloride. The compounds have herbicidal properties and may be made up in herbicidal compositions.
Patent GB-1289959-A (GB)
IPC: D06P1/607
Filed: 1970-10-21
Abstract: 1289959 Oxyalkylated amines FARBWERKE HOECHST AG 21 Oct 1970 [22 Oct 1969] 50015/70 Heading C3R [Also in Divisions D1-D2] The invention comprises oxyalkylation products of bis-(2-hydroxy-3-alkoxypropyl)-amines of the formula wherein R 1  and R 2  independently represent saturated or unsaturated C 4-24  aliphatic hydrocarbon radicals, R 3  represents hydrogen, hydroxyethyl or hydroxypropyl, and the said oxyalkylation product contains 10 to 150 units of alkylene oxide per molecule of amine. The carbon atoms of the R 1  and R 2  radicals may be optionally interrupted by oxygen atoms. Uses.-As levelling and after-treating agents in the dyeing of nitrogen-containing fibres with metal complex dyestuffs.